Eyeglass construction



May 5,' 1942. A. PERSON EYEGLASS CONSTRUCTION Filed Nov. 25, 1940 INVENTOR Axel Person BY film/L v/AQVuWQ ATTORNEYS Patented May 5, 1942 UNITED s'rAri-zs 'PAT E N T oF -F I'CE EYEGLASS CONSTRUCTION .Axe'ljPerson..Attleboro, Mass, assignor to Bay .State Optical Company, Attleboro, Mass., a corporation ofMaine Application November 25, '1-940; Serial No..366,964

4' Claims.

This invention relates 11107-8. :non-metalliceyeglass frame construction.

One of the objects of: thiszinvention is to provide an eyeglass construction which'will be sturdy perform certain functions-for example, .it I has In :the past, the metallic parts .used --to perform these functions have been bulky, vand and well-able to withstandhard usage. Another '5 this fact'has materially detractedfrom theapobject is toprovide a construction of .the above pearance of non-metallic frames. Furthermore, character whichmayb'e'manufacturedfromzlight difiiculty has .been experienced .in obtaining ..a and inexpensive materials. iAnother objectis to strong and durable. connection between-.ametalprovide a construction of the above character lic part anda nonmetallic frame which is able which is simple, thoroughlypracticaL'and dura- :to withstand the .strain of extensive use. Itis, ble in use. -A-sti1lfurthergobjectis to provide a accordingly, another object .of this invention -to construction of the above character which will overcome the above-mentioned difficulties, as be especially strong I in certain vulnerable spots wellas many others.

of the above typ of construction. YAHOthGI Jtmightherebenoted thatreferencehereinobject is to rovide' -an eyeglass --construction:of=il 5 after t an utward-dir t n-i-si fi s a dir the above character which will be, neat and -.attion o the eft 0 g t Of e b e of an y tractive' in appearance. A further object is t glass frame in the direction ofthetemples, while provide a construction of the above character the .term inward denotesa .direct fipp wherein the metallic parts .arewreliably secured thereto. .A frearward direction .refers.to adito the plastic material. ,-A .still further object go rection toward'the face of thewearer, whereas is to provide -a:- construction-.of *theabovexcharthe term forward. .denotesthe Opp i e fiir aster wh r i th etallic parts are concealed tion. .An "upw-ard?.directionrefers to aidirection to a-g-reatextent-to give a pleasing'efl'ect. Other upwardly fro the face of e wearer, While a objects will be'inipart obvious and in part pointed d w d direction s ppo e th etO.

out hereinafter. Referringnow to the .drawing '.in detail, in

The invention accordingly consists .in the fea- Figure 1 there is o n n eye la s frame 'in Side tures of construction, oombmati s f le t .elevationmade oizyloni-te .Qr IikemateriaI. This and arrangements of arts, rallras will be iuus- .frame n s a iml-fl, .an s uard l. and a tratively described therein, and the -.scope.of the .b id e 2. andha a arw d y v d ndpi application .of which will be indicated in :-the.:" yd at L- m d thereon Fisfollowing claims. .ure 6). This endpiece is preferably integral with In the accompanying drawing in hich i rim l0 and ishingedly-connectedLto a temple l5 shown one of the =variouspossible-embodiments y a t lli fitti s, n r lly ndicatedat 4, of my inv nti .mountedxin the endpiece.

Figure 1 is aside .elevationof van eyeglass frame-11:35 In Figure 2, endpiece is Shown e. t having the features of ..my invention embodied insertion Of metallic I4. Stage Of therein; assembly, .the endpiece has a. slot 16 cuttherein Figure 2 ,is a vertical -=secti0na1 .vi an which is.in substantially a horizontal-plane with enlargedzscale, .of a portion .ofth fra h respect-to the normalpositionofithe frame when i Figure lp tior t bl Lq worn. This slot is of substantially uniform .Figure 3 is aupers pective view n an,enlarged thickness and separates endpiece 13 into two scale, of an insert which -becomes a portion of nguep si' and I8. theframe during assembly; Metallic fitting l4 (Figure 4-) iS preferably Figure 4 is a perspective -view,..on an enlarged stamped from .sheet metal of a thickness subscale, of t n fitting used in t frame; stan'tially equal to the width ofendpieceslot l6 Figure 5 -is a perspective view, on "an enlarged nd pris s n elongated u v d s tion 25, scale, showing thefparts of Figures and 4 in which has an .eye l9 .formedon itsoouter end bl d relationship; a d, and a-rearwardly extending projection .20 (Fig- Figure 6 i a ,top plan view, on :an la d ure 6) formed on its inner end. This projection Scale, 1 portion mh frame shownjnl-iligure 1, extends a substantial distance-outwardly. from similar reference characters .refer 4-, Similar the side of curved section 25 transverselyof .endparts throughout the several views ;of the Piece I.3, iolming a o -s aped end on the drawing. fitting.

As conducive to a clearer understanding of TOcOnnectfittihg I4 endpiece 3, it is. first certain features of this invention, it might shereaso mounted n a plastic insert 22 (Figure 3).. .This be pointed out that it has been found desirable insert isap ab y cllt from a sheet of ,plastic to use metallic parts to perform certain funcmaterial, h s Zy ni e. and has substantially tions in non-metallic frames. This need arises the same thickness as metallic fitting M. An from the fact that the non-metallic material used opening 2| is formed in the center portion of n y s frames h s not sufiicient strength to o this insert (Fig 3) and gxtemfi vertically to, as well as many',others, are successfully actherethrough. This opening is of substantially the same shape as and is adapted to snugly receive metallic fitting I4 (Figure 5). Thus, when fitting I4 is positioned in opening 2I, the two form a flat member having a thickness substantially equal to the width of slot I6.

After the insertion of fitting I4 into opening 2|, the upper and lower surfaces of the fitting and the insert are coated with a priming lacquer having a cellulose base. This lacquer is allowed to dry, and then a cellulose solvent, such as ethyl acetate, is applied to the upper and lower surfaces of the fitting and insert and also to the sides of slot I6 in endpiece I3. When this solvent reduces the lacquer and the zylonite surfaces to which it was applied to a fusible state, insert 22 and fitting I4 are placed between tongues l1 and I 8 (Figure 2) of endpiece I3. Fitting I4 is so positioned that its elongated curved section25 (Fi ure 5) extends through the center portion of the endpiece with projection 20'positioned at the. inner' end of the slot and eye l9 extending rearwardly from the rear end thereof.

When fitting I4 is so positioned, tongues I1 and I8 are'pressed toward each other-so that they bear upon the upper and lower surfaces of fitting I4 and insert 22. This forces the solvent coated surfaces into contact with each other,

and then, as the solvent evaporates, these surfaces fuse together to forma strong and durable joint. Thus, insert 22 becomes in effect an integral part of the endpiece, and fitting I4 is securely connected to tongues I1 and I8 by the fusing of the tongues'to the layer of lacquer covering the fitting.

' .When the connection iscompleted, the zylonite ofinsert 22, protruding from slot I5. istrimmed to the shape of endpiece I3 which exposes ear I9. Temple I5 (Figures 1 and 6) .has a temple fitting 26 secured to its center rod 24,.and this fitting" has a pair of ears, one of which is shown at 21, formed thereon. Ear I 9 is adapted to fitbetween these ears, and a screw 23 is passed through them to form a hinged connection between the temple and part I4. Ear I9 and the earsof fitting 25 is disclosed. This results both from the mannerin which fitting I4 is mounted in endpiece I3 and from the shape of the fitting. Thus, projection 20, which extends a substantial distance into.v the endpiece transversely thereof, securely anchors the fitting therein so that it firmly re-- sists all strains resulting from use. Furthermore, fitting I4 is mounted in the endpiece .in a manner that prevents the formation of internal strains in the endpiece during the connection of the metallic fitting thereto.

It will thus be seen that I have provided a thoroughly practical and efiicient construction in whichthe several objects hereinabove referred Complished. p AS many ible embodiments may be made.

of the mechanical features of the above invention, and as many changes might be made in the embodiment above set forth, it is to be understood that all matter hereinabove set forth, or shown in the accompanying drawing, is to be interpreted as illustrative and not in a limiting sense.

I claim:

.1. In eyeglass construction, in combination, a pair of non-metallic rims, bridge means connecting said rims, said rims having a pair of slots formed therein, a pair of non-metallic members, said non-metallic members being of a width substantially equal to the width of said slots and having preformed holes therein, a pair of metallic fittings fitted into said preformed holes, a cement securing said non-metallic members in said slots, and a pair of temples secured to said metallic fittings' 2 In eyeglass construct-ion, in combination, a pair of non-metallic'rim members, bridge means conecting said rim members, said rim members having a pair of slots formed therein, a pair of inserts of non-metallic material, a pair of fiat metallic fittings said metallic fittings having projections formed thereon extending outwardly from the edges thereof a substantial distance, said inserts having openings formed therein of the same shape as said metallic fittings and said metallic fittingsbeing positioned in said openings, a cement securing said inserts in said slots, and a pair of temples secured to said metallic fittings.

3. In eyeglass construction, in combination, a pair of plastic'rim members, bridge means connecting said rim members, a pair of rearwardly curved endpieces formed on said rim members, said endpieces having a pair of slots formed therein extending in substantially a horizontal plane with respect to the normal position of the frame when worn, a pair of fiat plastic inserts having substantially the same thickness as said slots having openings formed therein, a pair of fiat metallic fittings'of substantially the same thickness as'said inserts, projections of substantial size formed on said metallic fittings and extending outwardly from the edges thereof, said metallic fittings being fitted into the openings in said plastic inserts, a cement securing said inserts and said metallic fittings to the side walls of said slots, and a pair of temples secured to said fittings.

4. In eyeglass construction, in combination, a pair of rim members having non-metallic endpieces formed thereon,fbridge means connectin said rim members, said endpieces having a pair of slots formed therein extending in substantially a horizontal plane with respect to the normal position of the frame "when worn, a pair of fiat plastic inserts having substantially thesame thickness as said slots and having preformed holes formed therein, a pair'of flat metallic fittings of substantially the-same thickness as said slots, a projection extending rearwardly from-the inner end of each of said fittings to form a hookshape'd end thereon, said metallic fittings fitting into the preformed holes in said plastic inserts, a cement securing said inserts to the side walls of said slot, and a pair of temples secured to said fittings. v

AXEL PERSON. 

